How do you find the value of the discriminant and determine the nature of the roots #x^2 + 9 = 6x#?
The given quadr. eqn. has two equal roots.
The quadr. eqn. given to us is
double-root at x = 3
y = x^2 - 6x + 9 = (x - 3)^2
There is a double-root at x = 3. The parabola is tangent to x-axis
at x = 3. Vertex (3, 0)